000  $anz n  2
000  $a주제어
001  $aKSH1998018108
005  $a19990615154832
008  $a980429 n azknnaabn          |a a|a    | 
150  $a조강 시멘트
450  $wr$i영어$ahigh strength cement
550  $wg$a시멘트(건축)[cement]
550  $wg$a요업[窯業]